Noob engine oil question. Do I HAVE to use 5w-20? (closed) - Toyota Yaris Forums

yarisugi · 11-08-2008, 03:48 PM

I have a couple cases of 10W-30 and 10W-40 (not synthetic) lying around in my garage.
Can I use those for my next oil change? I'm in Hawaii - a warm climate,
that never goes below 60 degrees in the winter. Not looking into buying synthetic either. Any suggestions?

gid · 11-08-2008, 07:35 PM

neither of those . Go with 5w-30 for your climate . 5w-30 is more common in stores . The 5w-30 hould be listed in your owners manual and printed on your oil cap .

Reddog99 · 11-09-2008, 01:51 AM

If your car is still on the warranty, and you care about whether the dealer might screw you because you didn't use the right oil (if something were to happen), then yes, you have to use 5W-30.

If you're not on the warranty, or you don't care, then either of the oils you have will work as long as they're the proper standard ("ILSAC", whatever the hell that is...). But since they're a bit thicker, you might see a small negative effect on your gas mileage. Check your owners manual for the proper grade.

yarisugi · 11-09-2008, 03:19 AM

Thanks guys. Looks like I'll have to wait for a sale on 5w30 oil.

anonymous user · 11-09-2008, 03:58 AM

It all depends on what you will be using the car for. If just daily driven, then 10w30 is ok. I personally love 5w30 in this climate. It's great, i run it in all my cars, and no problems.

jambo101 · 11-09-2008, 05:34 AM

If i had a case of new 10-30 oil it would be going in the car on the next oil change.

11-08-2008, 03:48 PM	#1
yarisugi やりすぎだ～ View User's Garage Drives: Me: Nuts: Join Date: Nov 2008 Location: ハワイ Posts: 2,041	Noob engine oil question. Do I HAVE to use 5w-20? (closed) I have a couple cases of 10W-30 and 10W-40 (not synthetic) lying around in my garage. Can I use those for my next oil change? I'm in Hawaii - a warm climate, that never goes below 60 degrees in the winter. Not looking into buying synthetic either. Any suggestions? Last edited by yarisugi; 11-09-2008 at 03:19 AM.

11-09-2008, 01:51 AM	#3
Reddog99 Drives: '08 Yaris Join Date: Oct 2008 Location: SoCal (Jamul) Posts: 97	If your car is still on the warranty, and you care about whether the dealer might screw you because you didn't use the right oil (if something were to happen), then yes, you have to use 5W-30. If you're not on the warranty, or you don't care, then either of the oils you have will work as long as they're the proper standard ("ILSAC", whatever the hell that is...). But since they're a bit thicker, you might see a small negative effect on your gas mileage. Check your owners manual for the proper grade. Last edited by Reddog99; 11-09-2008 at 12:03 PM.

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11-08-2008, 07:35 PM	#2
gid Drives: '08 Yaris sedan , '08 Liftback Join Date: Oct 2008 Location: Northeast Posts: 643	neither of those . Go with 5w-30 for your climate . 5w-30 is more common in stores . The 5w-30 hould be listed in your owners manual and printed on your oil cap .

11-09-2008, 03:19 AM	#4
yarisugi やりすぎだ～ View User's Garage Drives: Me: Nuts: Join Date: Nov 2008 Location: ハワイ Posts: 2,041	Thanks guys. Looks like I'll have to wait for a sale on 5w30 oil.

11-09-2008, 03:58 AM	#5
anonymous user rarer than JDM -1 of 1! View User's Garage Drives: 07yaris Join Date: Oct 2008 Location: windward oahu Posts: 402	It all depends on what you will be using the car for. If just daily driven, then 10w30 is ok. I personally love 5w30 in this climate. It's great, i run it in all my cars, and no problems.

11-09-2008, 05:34 AM	#6
jambo101 Drives: yaris 08 sedan Join Date: Oct 2008 Location: Montreal Canada Posts: 1,286	If i had a case of new 10-30 oil it would be going in the car on the next oil change.